Seiten application controller helper methods, inspired by devise

helpers.rb

module Seiten
  module Controllers
    # Those helpers are convenience methods added to ApplicationController.
    module Helpers
      extend ActiveSupport::Concern

      def current_page
        @current_page ||= Seiten::Page.find_by_slug(request.fullpath)
      end
    end
  end
end

seiten.rb

require 'seiten/engine'
require 'seiten/page_store'
require 'seiten/page'

module Seiten

  @config = {
    storage_type: :yaml,
    storage_file: File.join('config', 'navigation.yml'),
    storage_directory: File.join('app', 'pages')
  }

  def self.config
    @config
  end

  module Controllers
    autoload :Helpers, 'seiten/controllers/helpers'
  end

  ActiveSupport.on_load(:action_controller) do
    include Controllers::Helpers
    helper_method :current_page
  end
end